What protocl is used for file downloads

One is a Control connection, and another is a Data connection. For control connection, it uses well-known port 21, and for data connection, it uses well-known port It is generally used for communicating files among machines set up in the local intranet only. This application layer Protocol could be used to communicate boot files if computers do not have hard disks. It generally uses protocol 69; however, the port used for communication could be defined by used when Trivial File Transfer Protocol is being set up.

SMTP stands for Simple mail transfer protocol is used to transfer the mails. It defines how both commands and responses must be sent back and forth.

To transfer messages between Messages Transfer Agents client and message transfer agents sever, simple mail transfer protocol uses commands and responses. The actual mail transfer is done through MTA, i. Message Transfer Agents. The system must have the client message transfer agents and server message transfer agents to transfer mail from one system to another.

SNMP stands for Simple network management protocol which is used to collect and organize the data of managed devices on IP networks. Here's one that can do more than just facilitate file transfers. Through WebDAV, users won't just be able to exchange files. They'll also be able to collaborate over a single file even if they're the users working from different locations.

WebDAV is probably best suited for organizations who need distributed authoring capabilities, e. By now, you should be able to guess what the S stands for.

This file transfer protocol is different from the rest in that you won't be using it for exchanging documents, images, or spreadsheets. In fact, you nornally won't be using this for exchanging files with machines outside of your network. TFTP is better suited for network management tasks like network booting, backing up configuration files, and installing operating systems over a network. Why did we include it here? Well, it is a file transfer protocol and you certainly can use it in your business albeit internally.

Although nearly all of the protocols discussed earlier are capable of supporting B2B exchanges, there are a few protocols that are really designed specifically for such tasks. One of them is AS2. Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Ask Question. Asked 10 years, 4 months ago. Active 10 years, 4 months ago. Viewed 3k times. One of the challenges with FTPS and SFTP is that a customer has to have a file transfer client installed that supports those protocols, and the customer has to be trained on how to use that client.

Secure file transfer systems based on HTTPS overcome those two issues because nearly every system today has a web browser installed, and most users are familiar with the basics of using a web browser. The original FTP protocol offers no security and transmits commands and data in an open, easily eavesdropped connection. It was developed over 40 years ago when the networks it was designed to run on were simpler — and safer.

Despite the long understood security vulnerabilities in running plain FTP, there are many implementation still in use today.

Eith er is appropriate when a secure connection is required, but SFTP tends to be easier to configure and more firewall friendly. The T LS protocol relies on a complex public trust infrastructure, revolving around Certificate Authorities CA , signed x certificates, and trust verification and revocation mechanisms.

Still, this added complexity has added benefits for customers. SFTP runs over a considerably more robust and generic protocol than FTPS, and that robustness imparts a significant performance impact.